Michael Ballack put Chelsea ahead at Stamford Bridge in a game they had to win to stand any realistic chance of winning the title.

BBC: Man Utd could crack, says Grant

Above all, Global Zero had to stand for a realistic process that was phased, multilateral, universal and backed by hard-nosed verification.

ECONOMIST: Banning the bomb will be hard, but not impossible

Is it better to pay more up front to build a school that will stand the test of time or is it more realistic in terms of the limited funds available to build what they can now?

FORBES: A BIG Throwdown Between Two Non-Profits To Build 100 Classrooms